2 *------------------------------------------------------------------
3 * Copyright (c) 2018 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
18 #include <vlib/vlib.h>
19 #include <vlib/unix/unix.h>
20 #include <vlib/pci/pci.h>
21 #include <vnet/ethernet/ethernet.h>
25 #define AVF_MBOX_LEN 64
26 #define AVF_MBOX_BUF_SZ 512
27 #define AVF_RXQ_SZ 512
28 #define AVF_TXQ_SZ 512
29 #define AVF_ITR_INT 8160
31 #define PCI_VENDOR_ID_INTEL 0x8086
32 #define PCI_DEVICE_ID_INTEL_AVF 0x1889
33 #define PCI_DEVICE_ID_INTEL_X710_VF 0x154c
34 #define PCI_DEVICE_ID_INTEL_X722_VF 0x37cd
38 static pci_device_id_t avf_pci_device_ids[] = {
39 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
40 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
44 //#define avf_log_debug(fmt, ...) fformat(stderr, "%s: " fmt "\n", __func__, __VA_ARGS__)
45 #define avf_log_debug(fmt, ...)
48 avf_irq_0_disable (avf_device_t * ad)
50 u32 dyn_ctl0 = 0, icr0_ena = 0;
52 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
54 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
55 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
60 avf_irq_0_enable (avf_device_t * ad)
62 u32 dyn_ctl0 = 0, icr0_ena = 0;
64 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
66 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
67 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
68 //dyn_ctl0 |= (3 << 3); /* [4:3] ITR Index, 11b = No ITR update */
69 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
71 avf_irq_0_disable (ad);
72 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
73 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
78 avf_irq_n_disable (avf_device_t * ad, u8 line)
82 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
87 avf_irq_n_enable (avf_device_t * ad, u8 line)
91 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
92 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
93 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
95 avf_irq_n_disable (ad, line);
96 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
102 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
105 clib_error_t *err = 0;
106 avf_aq_desc_t *d, dc;
109 d = &ad->atq[ad->atq_next_slot];
110 clib_memcpy (d, dt, sizeof (avf_aq_desc_t));
111 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
117 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
118 d->addr_hi = (u32) (pa >> 32);
119 d->addr_lo = (u32) pa;
120 clib_memcpy (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ, data,
122 d->flags |= AVF_AQ_F_BUF;
125 if (ad->flags & AVF_DEVICE_F_ELOG)
126 clib_memcpy (&dc, d, sizeof (avf_aq_desc_t));
128 CLIB_MEMORY_BARRIER ();
129 avf_log_debug ("%U", format_hexdump, data, len);
130 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
131 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
135 vlib_process_suspend (vm, 10e-6);
137 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
141 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
148 clib_memcpy (dt, d, sizeof (avf_aq_desc_t));
149 if (d->flags & AVF_AQ_F_ERR)
150 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
151 "%d]", d->opcode, d->retval);
154 if (ad->flags & AVF_DEVICE_F_ELOG)
157 ELOG_TYPE_DECLARE (el) =
159 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
160 "datalen %d retval %d",
161 .format_args = "i4i2i2i2i2i2",
172 ed = ELOG_DATA (&vm->elog_main, el);
173 ed->dev_instance = ad->dev_instance;
174 ed->s_flags = dc.flags;
175 ed->r_flags = d->flags;
176 ed->opcode = dc.opcode;
177 ed->datalen = dc.datalen;
178 ed->retval = d->retval;
186 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
190 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
191 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
193 if (ad->flags & AVF_DEVICE_F_ELOG)
196 ELOG_TYPE_DECLARE (el) =
198 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
199 .format_args = "i4i4i4",
207 ed = ELOG_DATA (&vm->elog_main, el);
208 ed->dev_instance = ad->dev_instance;
217 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid)
219 avf_main_t *am = &avf_main;
221 clib_error_t *error = 0;
224 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
225 rxq = vec_elt_at_index (ad->rxqs, qid);
226 rxq->size = AVF_RXQ_SZ;
228 rxq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
229 rxq->size * sizeof (avf_rx_desc_t),
230 2 * CLIB_CACHE_LINE_BYTES);
231 memset (rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
232 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
233 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
235 n_alloc = vlib_buffer_alloc (vm, rxq->bufs, rxq->size - 8);
238 return clib_error_return (0, "buffer allocation error");
240 rxq->n_bufs = n_alloc;
241 avf_rx_desc_t *d = rxq->descs;
242 for (i = 0; i < n_alloc; i++)
244 if (ad->flags & AVF_DEVICE_F_IOVA)
246 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
247 d->qword[0] = pointer_to_uword (b->data);
251 vlib_get_buffer_data_physical_address (vm, rxq->bufs[i]);
258 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid)
260 avf_main_t *am = &avf_main;
262 clib_error_t *error = 0;
264 if (qid >= ad->num_queue_pairs)
266 qid = qid % ad->num_queue_pairs;
267 txq = vec_elt_at_index (ad->txqs, qid);
269 clib_spinlock_init (&txq->lock);
270 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
274 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
275 txq = vec_elt_at_index (ad->txqs, qid);
276 txq->size = AVF_TXQ_SZ;
278 txq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
279 txq->size * sizeof (avf_tx_desc_t),
280 2 * CLIB_CACHE_LINE_BYTES);
281 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
282 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
290 } virtchnl_promisc_info_t;
293 avf_arq_slot_init (avf_device_t * ad, u16 slot)
296 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
298 memset (d, 0, sizeof (avf_aq_desc_t));
299 d->flags = AVF_AQ_F_BUF;
300 d->datalen = AVF_MBOX_BUF_SZ;
301 d->addr_hi = (u32) (pa >> 32);
302 d->addr_lo = (u32) pa;
306 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
308 avf_main_t *am = &avf_main;
309 return (ad->flags & AVF_DEVICE_F_IOVA) ?
310 pointer_to_uword (p) :
311 vlib_physmem_virtual_to_physical (vm, am->physmem_region, p);
315 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
320 /* VF MailBox Transmit */
321 memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
322 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
324 pa = avf_dma_addr (vm, ad, ad->atq);
325 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
326 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
327 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1 << 31)); /* len & ena */
328 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
329 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
331 /* VF MailBox Receive */
332 memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
333 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
335 for (i = 0; i < AVF_MBOX_LEN; i++)
336 avf_arq_slot_init (ad, i);
338 pa = avf_dma_addr (vm, ad, ad->arq);
340 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
341 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
342 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1 << 31)); /* len & ena */
343 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
344 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
345 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
347 ad->atq_next_slot = 0;
348 ad->arq_next_slot = 0;
352 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
353 void *in, int in_len, void *out, int out_len)
356 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
361 /* supppres interrupt in the next adminq receive slot
362 as we are going to wait for response
363 we only need interrupts when event is received */
364 d = &ad->arq[ad->arq_next_slot];
365 d->flags |= AVF_AQ_F_SI;
367 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
371 head = avf_get_u32 (ad->bar0, AVF_ARQH);
373 if (ad->arq_next_slot == head)
376 return clib_error_return (0, "timeout");
377 vlib_process_suspend (vm, 10e-3);
381 d = &ad->arq[ad->arq_next_slot];
383 if (d->v_opcode == VIRTCHNL_OP_EVENT)
385 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
386 virtchnl_pf_event_t *e;
388 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
389 ((d->flags & AVF_AQ_F_BUF) == 0))
390 return clib_error_return (0, "event message error");
392 vec_add2 (ad->events, e, 1);
393 clib_memcpy (e, buf, sizeof (virtchnl_pf_event_t));
394 avf_arq_slot_init (ad, ad->arq_next_slot);
400 if (d->v_opcode != op)
402 err = clib_error_return (0, "unexpected message receiver [v_opcode = %u"
403 "expected %u]", d->v_opcode, op);
409 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
410 d->v_opcode, d->v_retval);
414 if (d->flags & AVF_AQ_F_BUF)
416 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
417 clib_memcpy (out, buf, out_len);
420 avf_arq_slot_init (ad, ad->arq_next_slot);
421 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
423 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
427 if (ad->flags & AVF_DEVICE_F_ELOG)
430 ELOG_TYPE_DECLARE (el) =
432 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
433 .format_args = "i4t4i4i4",
434 .n_enum_strings = VIRTCHNL_N_OPS,
436 #define _(v, n) [v] = #n,
448 ed = ELOG_DATA (&vm->elog_main, el);
449 ed->dev_instance = ad->dev_instance;
451 ed->v_opcode_val = op;
452 ed->v_retval = d->v_retval;
459 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
460 virtchnl_version_info_t * ver)
462 clib_error_t *err = 0;
463 virtchnl_version_info_t myver = {
464 .major = VIRTCHNL_VERSION_MAJOR,
465 .minor = VIRTCHNL_VERSION_MINOR,
468 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
469 sizeof (virtchnl_version_info_t), ver,
470 sizeof (virtchnl_version_info_t));
479 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
480 virtchnl_vf_resource_t * res)
482 clib_error_t *err = 0;
483 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_AQ |
484 VIRTCHNL_VF_OFFLOAD_RSS_REG | VIRTCHNL_VF_OFFLOAD_WB_ON_ITR |
485 VIRTCHNL_VF_OFFLOAD_VLAN | VIRTCHNL_VF_OFFLOAD_RX_POLLING);
487 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
488 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
497 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
499 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
504 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad)
506 virtchnl_promisc_info_t pi = { 0 };
508 pi.vsi_id = ad->vsi_id;
510 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
511 sizeof (virtchnl_promisc_info_t), 0, 0);
516 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
519 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
520 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
521 sizeof (virtchnl_queue_pair_info_t);
523 virtchnl_vsi_queue_config_info_t *ci;
525 memset (msg, 0, msg_len);
526 ci = (virtchnl_vsi_queue_config_info_t *) msg;
527 ci->vsi_id = ad->vsi_id;
528 ci->num_queue_pairs = n_qp;
530 for (i = 0; i < n_qp; i++)
532 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
533 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
535 rxq->vsi_id = ad->vsi_id;
537 rxq->max_pkt_size = 1518;
538 if (i < vec_len (ad->rxqs))
540 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
541 rxq->ring_len = q->size;
542 rxq->databuffer_size = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES;
543 rxq->dma_ring_addr = avf_dma_addr (vm, ad, q->descs);
544 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
547 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
548 txq->vsi_id = ad->vsi_id;
549 if (i < vec_len (ad->txqs))
552 txq->ring_len = q->size;
553 txq->dma_ring_addr = avf_dma_addr (vm, ad, q->descs);
557 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
562 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
565 int msg_len = sizeof (virtchnl_irq_map_info_t) +
566 count * sizeof (virtchnl_vector_map_t);
568 virtchnl_irq_map_info_t *imi;
570 memset (msg, 0, msg_len);
571 imi = (virtchnl_irq_map_info_t *) msg;
572 imi->num_vectors = count;
574 imi->vecmap[0].vector_id = 1;
575 imi->vecmap[0].vsi_id = ad->vsi_id;
576 imi->vecmap[0].rxq_map = 1;
577 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
582 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
585 sizeof (virtchnl_ether_addr_list_t) +
586 count * sizeof (virtchnl_ether_addr_t);
588 virtchnl_ether_addr_list_t *al;
591 memset (msg, 0, msg_len);
592 al = (virtchnl_ether_addr_list_t *) msg;
593 al->vsi_id = ad->vsi_id;
594 al->num_elements = count;
595 for (i = 0; i < count; i++)
596 clib_memcpy (&al->list[i].addr, macs + i * 6, 6);
597 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
602 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
604 virtchnl_queue_select_t qs = { 0 };
605 qs.vsi_id = ad->vsi_id;
608 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, 0);
609 avf_reg_write (ad, AVF_QRX_TAIL (0), rxq->n_bufs);
610 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
611 sizeof (virtchnl_queue_select_t), 0, 0);
615 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
616 virtchnl_eth_stats_t * es)
618 virtchnl_queue_select_t qs = { 0 };
619 qs.vsi_id = ad->vsi_id;
620 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
621 &qs, sizeof (virtchnl_queue_select_t),
622 es, sizeof (virtchnl_eth_stats_t));
626 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
628 avf_aq_desc_t d = { 0 };
634 d.v_opcode = VIRTCHNL_OP_RESET_VF;
635 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
639 vlib_process_suspend (vm, 10e-3);
640 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
642 if (rstat == 2 || rstat == 3)
646 return clib_error_return (0, "reset failed (timeout)");
652 avf_device_init (vlib_main_t * vm, avf_device_t * ad)
654 virtchnl_version_info_t ver = { 0 };
655 virtchnl_vf_resource_t res = { 0 };
657 vlib_thread_main_t *tm = vlib_get_thread_main ();
660 avf_adminq_init (vm, ad);
662 if ((error = avf_device_reset (vm, ad)))
665 avf_adminq_init (vm, ad);
670 if ((error = avf_op_version (vm, ad, &ver)))
673 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
674 ver.minor != VIRTCHNL_VERSION_MINOR)
675 return clib_error_return (0, "incompatible protocol version "
676 "(remote %d.%d)", ver.major, ver.minor);
681 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
684 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
685 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
687 ad->vsi_id = res.vsi_res[0].vsi_id;
688 ad->feature_bitmap = res.vf_offload_flags;
689 ad->num_queue_pairs = res.num_queue_pairs;
690 ad->max_vectors = res.max_vectors;
691 ad->max_mtu = res.max_mtu;
692 ad->rss_key_size = res.rss_key_size;
693 ad->rss_lut_size = res.rss_lut_size;
695 clib_memcpy (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
698 * Disable VLAN stripping
700 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
703 if ((error = avf_config_promisc_mode (vm, ad)))
706 if ((error = avf_cmd_rx_ctl_reg_write (vm, ad, 0xc400, 0)))
709 if ((error = avf_cmd_rx_ctl_reg_write (vm, ad, 0xc404, 0)))
715 if ((error = avf_rxq_init (vm, ad, 0)))
718 for (i = 0; i < tm->n_vlib_mains; i++)
719 if ((error = avf_txq_init (vm, ad, i)))
722 if ((error = avf_op_config_vsi_queues (vm, ad)))
725 if ((error = avf_op_config_irq_map (vm, ad)))
728 avf_irq_0_enable (ad);
729 avf_irq_n_enable (ad, 0);
731 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
734 if ((error = avf_op_enable_queues (vm, ad, 1, 0)))
737 if ((error = avf_op_enable_queues (vm, ad, 0, 1)))
740 ad->flags |= AVF_DEVICE_F_INITIALIZED;
745 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
747 vnet_main_t *vnm = vnet_get_main ();
748 virtchnl_pf_event_t *e;
751 if (ad->flags & AVF_DEVICE_F_ERROR)
754 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
757 ASSERT (ad->error == 0);
759 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
760 if ((r & 0xf0000000) != (1 << 31))
762 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
766 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
767 if ((r & 0xf0000000) != (1 << 31))
769 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
774 avf_op_get_stats (vm, ad, &ad->eth_stats);
777 vec_foreach (e, ad->events)
779 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
781 int link_up = e->event_data.link_event.link_status;
782 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
785 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
787 ad->flags |= AVF_DEVICE_F_LINK_UP;
788 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
789 VNET_HW_INTERFACE_FLAG_LINK_UP);
790 if (speed == VIRTCHNL_LINK_SPEED_40GB)
791 flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
792 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
793 flags |= VNET_HW_INTERFACE_FLAG_SPEED_25G;
794 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
795 flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
796 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
797 flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
798 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
799 flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
800 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
801 ad->link_speed = speed;
803 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
805 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
809 if (ad->flags & AVF_DEVICE_F_ELOG)
811 ELOG_TYPE_DECLARE (el) =
813 .format = "avf[%d] link change: link_status %d "
815 .format_args = "i4i1i1",
823 ed = ELOG_DATA (&vm->elog_main, el);
824 ed->dev_instance = ad->dev_instance;
825 ed->link_status = link_up;
826 ed->link_speed = speed;
831 if (ad->flags & AVF_DEVICE_F_ELOG)
833 ELOG_TYPE_DECLARE (el) =
835 .format = "avf[%d] unknown event: event %d severity %d",
836 .format_args = "i4i4i1i1",
844 ed = ELOG_DATA (&vm->elog_main, el);
845 ed->dev_instance = ad->dev_instance;
846 ed->event = e->event;
847 ed->severity = e->severity;
852 vec_reset_length (ad->events);
857 ad->flags |= AVF_DEVICE_F_ERROR;
858 ASSERT (ad->error != 0);
862 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
864 clib_warning ("TODO");
869 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
871 avf_main_t *am = &avf_main;
873 uword *event_data = 0, event_type;
874 int enabled = 0, irq;
875 f64 last_run_duration = 0;
876 f64 last_periodic_time = 0;
881 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
883 vlib_process_wait_for_event (vm);
885 event_type = vlib_process_get_events (vm, &event_data);
886 vec_reset_length (event_data);
892 last_periodic_time = vlib_time_now (vm);
894 case AVF_PROCESS_EVENT_START:
897 case AVF_PROCESS_EVENT_STOP:
900 case AVF_PROCESS_EVENT_AQ_INT:
908 pool_foreach (ad, am->devices,
910 avf_process_one_device (vm, ad, irq);
913 last_run_duration = vlib_time_now (vm) - last_periodic_time;
919 VLIB_REGISTER_NODE (avf_process_node, static) = {
920 .function = avf_process,
921 .type = VLIB_NODE_TYPE_PROCESS,
922 .name = "avf-process",
927 avf_irq_0_handler (vlib_pci_dev_handle_t h, u16 line)
929 vlib_main_t *vm = vlib_get_main ();
930 avf_main_t *am = &avf_main;
931 uword pd = vlib_pci_get_private_data (h);
932 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
935 icr0 = avf_reg_read (ad, AVFINT_ICR0);
937 if (ad->flags & AVF_DEVICE_F_ELOG)
940 ELOG_TYPE_DECLARE (el) =
942 .format = "avf[%d] irq 0: icr0 0x%x",
943 .format_args = "i4i4",
952 ed = ELOG_DATA (&vm->elog_main, el);
953 ed->dev_instance = ad->dev_instance;
957 avf_irq_0_enable (ad);
959 /* bit 30 - Send/Receive Admin queue interrupt indication */
960 if (icr0 & (1 << 30))
961 vlib_process_signal_event (vm, avf_process_node.index,
962 AVF_PROCESS_EVENT_AQ_INT, 0);
966 avf_irq_n_handler (vlib_pci_dev_handle_t h, u16 line)
968 vlib_main_t *vm = vlib_get_main ();
969 avf_main_t *am = &avf_main;
970 uword pd = vlib_pci_get_private_data (h);
971 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
973 if (ad->flags & AVF_DEVICE_F_ELOG)
976 ELOG_TYPE_DECLARE (el) =
978 .format = "avf[%d] irq %d: received",
979 .format_args = "i4i2",
988 ed = ELOG_DATA (&vm->elog_main, el);
989 ed->dev_instance = ad->dev_instance;
993 avf_irq_n_enable (ad, 0);
997 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
999 vnet_main_t *vnm = vnet_get_main ();
1000 avf_main_t *am = &avf_main;
1003 if (ad->hw_if_index)
1005 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1006 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1007 ethernet_delete_interface (vnm, ad->hw_if_index);
1010 vlib_pci_device_close (ad->pci_dev_handle);
1012 vlib_physmem_free (vm, am->physmem_region, ad->atq);
1013 vlib_physmem_free (vm, am->physmem_region, ad->arq);
1014 vlib_physmem_free (vm, am->physmem_region, ad->atq_bufs);
1015 vlib_physmem_free (vm, am->physmem_region, ad->arq_bufs);
1018 vec_foreach_index (i, ad->rxqs)
1020 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1021 vlib_physmem_free (vm, am->physmem_region, rxq->descs);
1023 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1025 vec_free (rxq->bufs);
1028 vec_free (ad->rxqs);
1031 vec_foreach_index (i, ad->txqs)
1033 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1034 vlib_physmem_free (vm, am->physmem_region, txq->descs);
1037 u16 first = (txq->next - txq->n_bufs) & (txq->size -1);
1038 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1041 vec_free (txq->bufs);
1044 vec_free (ad->txqs);
1046 clib_error_free (ad->error);
1047 memset (ad, 0, sizeof (*ad));
1048 pool_put (am->devices, ad);
1052 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1054 vnet_main_t *vnm = vnet_get_main ();
1055 avf_main_t *am = &avf_main;
1057 vlib_pci_dev_handle_t h;
1058 clib_error_t *error = 0;
1060 pool_get (am->devices, ad);
1061 ad->dev_instance = ad - am->devices;
1062 ad->per_interface_next_index = ~0;
1064 if (args->enable_elog)
1065 ad->flags |= AVF_DEVICE_F_ELOG;
1067 if ((error = vlib_pci_device_open (&args->addr, avf_pci_device_ids, &h)))
1069 ad->pci_dev_handle = h;
1071 vlib_pci_set_private_data (h, ad->dev_instance);
1073 if ((error = vlib_pci_bus_master_enable (h)))
1076 if ((error = vlib_pci_map_region (h, 0, &ad->bar0)))
1079 if ((error = vlib_pci_register_msix_handler (h, 0, 1, &avf_irq_0_handler)))
1082 if ((error = vlib_pci_register_msix_handler (h, 1, 1, &avf_irq_n_handler)))
1085 if ((error = vlib_pci_enable_msix_irq (h, 0, 2)))
1088 if (am->physmem_region_alloc == 0)
1090 u32 flags = VLIB_PHYSMEM_F_INIT_MHEAP | VLIB_PHYSMEM_F_HUGETLB;
1091 error = vlib_physmem_region_alloc (vm, "avf descriptors", 4 << 20, 0,
1092 flags, &am->physmem_region);
1095 am->physmem_region_alloc = 1;
1097 ad->atq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1098 sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
1103 ad->arq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1104 sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
1109 ad->atq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1110 AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
1115 ad->arq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1116 AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
1121 if ((error = vlib_pci_intr_enable (h)))
1125 ad->flags |= AVF_DEVICE_F_IOVA;
1127 if ((error = avf_device_init (vm, ad)))
1130 /* create interface */
1131 error = ethernet_register_interface (vnm, avf_device_class.index,
1132 ad->dev_instance, ad->hwaddr,
1133 &ad->hw_if_index, avf_flag_change);
1138 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1139 ad->sw_if_index = sw->sw_if_index;
1141 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1142 avf_input_node.index);
1144 if (pool_elts (am->devices) == 1)
1145 vlib_process_signal_event (vm, avf_process_node.index,
1146 AVF_PROCESS_EVENT_START, 0);
1151 avf_delete_if (vm, ad);
1152 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1153 args->error = clib_error_return (error, "pci-addr %U",
1154 format_vlib_pci_addr, &args->addr);
1157 static clib_error_t *
1158 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1160 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1161 avf_main_t *am = &avf_main;
1162 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1163 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1165 if (ad->flags & AVF_DEVICE_F_ERROR)
1166 return clib_error_return (0, "device is in error state");
1170 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1171 VNET_HW_INTERFACE_FLAG_LINK_UP);
1172 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1173 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, 0, ~0);
1177 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1178 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1184 VNET_DEVICE_CLASS (avf_device_class,) =
1186 .name = "Adaptive Virtual Function (AVF) interface",
1187 .tx_function = avf_interface_tx,
1188 .format_device = format_avf_device,
1189 .format_device_name = format_avf_device_name,
1190 .admin_up_down_function = avf_interface_admin_up_down,
1195 avf_init (vlib_main_t * vm)
1197 avf_main_t *am = &avf_main;
1198 clib_error_t *error;
1199 vlib_thread_main_t *tm = vlib_get_thread_main ();
1202 if ((error = vlib_call_init_function (vm, pci_bus_init)))
1205 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1206 CLIB_CACHE_LINE_BYTES);
1208 /* initialize ptype based loopup table */
1209 vec_validate_aligned (am->ptypes, 255, CLIB_CACHE_LINE_BYTES);
1212 vec_foreach_index (i, am->ptypes)
1214 avf_ptype_t *p = vec_elt_at_index (am->ptypes, i);
1215 if ((i >= 22) && (i <= 87))
1217 p->next_node = VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT;
1218 p->flags = VNET_BUFFER_F_IS_IP4;
1220 else if ((i >= 88) && (i <= 153))
1222 p->next_node = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
1223 p->flags = VNET_BUFFER_F_IS_IP6;
1226 p->next_node = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
1227 p->buffer_advance = device_input_next_node_advance[p->next_node];
1228 p->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
1235 VLIB_INIT_FUNCTION (avf_init);
1238 * fd.io coding-style-patch-verification: ON
1241 * eval: (c-set-style "gnu")